According to genic balance theroy ,X/A=1.5 will make the individual

Options

A. Male
B. Meta or super female
C. Intersex
D. None of the above

Answer

To solve the question regarding the genic balance theory and the significance of the ratio X/A = 1.5, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Genic Balance Theory**:
The genic balance theory, proposed by Thomas Hunt Morgan and further developed by Bridges, states that the sex of an individual is determined by the ratio of X chromosomes to the number of sets of autosomes (A).

2. **Setting Up the Ratio**:
The question gives us the ratio X/A = 1.5. This means that for every set of autosomes, there are 1.5 X chromosomes.

3. **Determining the Chromosomal Composition**:
- Let’s denote the number of X chromosomes as X and the number of sets of autosomes as A.
- If we assume A = 2 (which means there are two pairs of autosomes), we can calculate the number of X chromosomes:
\[ \frac{X}{A} = 1.5 \implies \frac{X}{2} = 1.5 \implies X = 1.5 \times 2 = 3 \]
- Therefore, we have 3 X chromosomes (XXX) and 2 sets of autosomes (AA).

4. **Identifying the Individual's Sex**:
- According to the genic balance theory:
- A ratio of X/A = 1.0 corresponds to a normal female.
- A ratio of X/A = 0.5 corresponds to a normal male.
- A ratio greater than 1.0 indicates a metafemale or superfemale.
- Since our calculated ratio is 1.5, this indicates that the individual is a metafemale (or superfemale).

5. **Conclusion**:
- Therefore, according to the genic balance theory, an individual with a ratio of X/A = 1.5 will be classified as a metafemale.

### Final Answer:
The individual with X/A = 1.5 will be a **metafemale**.